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FAQ: PhysX - Page 14

post #131 of 269
Quote:
Originally Posted by Thegodfathers;11935522 
I recently bought a 9800 GT to use as a physx card but cannot get it to be recognised in device manager or the nvidia control panel. Uninstalled the drivers, shut down and installed the 9800 booted up and installed the drivers again and restarted. Low and behold it's not recognised. I tried the same thing but with the 9800 plugged into a spare monitor but still it's not recognised, maybe I've gone wrong somewhere who knows ? Help would be much appreciated confused.gif

Are you saying that you bought the 9800 to use WITH the 8800 that is in your system specs? I know that your motherboard doesn't support SLI, but am not sure if you can use two nVidia GPUs (NOT IN SLI) at the same time on a P35 board. I have a P45 board and have wondered about this in the past, but never searched it.

I have read that NO monitor can be connected to the second nvidia card on a Px5 board if you are going to use that card for Physx, but don't know how reliable that is. I also found this post which makes me think it can't be done.
But then, on the same page:
Quote:
He wants the GTX 280 to do all the 3D rendering entirely on it's own. He wants the 9800GTX+ to do nothing but PhysX acceleration. No graphics, no SLI, not even multimonitor.

This does not require an Nvidia chipset. This does not require SLI.

The chipset used on the motherboard should not be relevant beyond it's differential value.

I would love to hear a better answer on this from some one with more knowledge than me.
Edited by grishkathefool - 1/8/11 at 9:20am
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post #132 of 269
Red Faction PC 2002 the game running on nothing more than a old processor doing pretty nice physics without performance issues.

Is this the smoking gun of PhysX being a artificial sales gimmick?

[ame]http://www.youtube.com/watch?v=baWbh9062VE&feature=player_embedded[/ame]


If PhysX is not a gimmick, whats happened here, have all programmers lost the art of writing efficient code?

Sorry if you saw me post this in another thread, but it seems more at home here smile.gif

Note how the first shot passes through both windows impacting the wall behind creating damage.

Note how bombs effect walls and windows.

Note how bombs distribute glass

I played Red Faction and I remember performance was good all CPU driven.
Edited by Battleneter - 1/15/11 at 2:58pm
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post #133 of 269
Nvidia is pretty much only one who offers advanced physics in video games with their proprietory PhysX engine.
ATI don't have any alternative for that AFAIK. confused.gif
If PhysX would be used by NVIDIA and ATI video cards, i'd guess game developers would implement it in their games more often and find better ways how to use realistic physics to not only show more eye-candy,but enhance gameplay.

Good open source physics engine most likely will kill off PhysX.
I like PhysX for now, but i wish there would be much more games that do support it redface.gif

Red Faction 1 exploding ground ,after 9 years, still looks awesome biggrin.gif
Edited by EwX - 1/11/11 at 5:25am
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post #134 of 269
Quote:
Originally Posted by EwX;11969140 

Good open source physics engine most likely will kill off PhysX.
I like PhysX for now, but i wish there would be much more games that do support it redface.gif

Red Faction 1 exploding ground ,after 9 years, still looks awesome biggrin.gif

yea great game, shame Red Faction 2 sucked so much LP

I think what gets me the most is, all these PhysX games are rigged to nerf CPU Physics, basically the code for the CPU is rubbish and clearly deliberately so, users are being manipulated into installing unnecessary second dedicated cards.

This is not progress its marketing.
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post #135 of 269
Hey everyone. Im running SLI gtx480s with an 8800gtx ko as a physx card. Works woderfully in Mafia 2.
For anyone else running SLI, do you ever switch the 2 cards up every once and awhile, just so 1 card doesn't get the brunt of the heat, but rather to rotate them so one doesn't get more heat warped? My top card runs 5-9 degrees celcius hotter from idle to full.

Sent from my DROIDX using Tapatalk
post #136 of 269
grishkathefool, thanks for the info. I tested the 9800 by itself in another system and turns out it was DOA, getting my money back and plan the full system overhaul biggrin.gif
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post #137 of 269
One question

If I have one board with 3 PCI-E, the first at 16x the second at 8x and the third at 4x, can I put two GTX 460 in sli at 8x/8x and the third PCI-E won't loose any lanes for a third card for physx like a 9600gt? or the SLI configuration will losse any lanes from the PCI-E 4x?

Sorry If i don't explain very well but I speak spanish and this is my best english lol
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post #138 of 269
well if you board has 3 pcie slots then more then likely it would run something like 8x8x4 in which case a physx would work fine, it would help to know what board you have because I don't think it is the one you have in sig rig because it only has one pcie
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post #139 of 269
Quote:
Originally Posted by dhopisthename;12170302 
well if you board has 3 pcie slots then more then likely it would run something like 8x8x4 in which case a physx would work fine, it would help to know what board you have because I don't think it is the one you have in sig rig because it only has one pcie

I don't have the board yet, that's why i'm asking because i need a SLI+PhysX board, so i'm put my eye on the asrock P67 extreme4
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post #140 of 269
Quote:
Originally Posted by jenkas10;12182848 
I don't have the board yet, that's why i'm asking because i need a SLI+PhysX board, so i'm put my eye on the asrock P67 extreme4

yeah that board does dual 8x8 with the third slot shifting to 4x which is way more then physx needs
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